package com.okwanshiwu.util;

import org.apache.log4j.Logger;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

/**
 * prop
 *
 * @author
 * @create 2017-07-28 15:01
 **/
public class PropUtil {

	private static final Logger logger = Logger.getLogger(PropUtil.class);

	/**
	 * 加载属性文件
	 */
	public static Properties loadProps(String fileName) {
		Properties props = null;
		InputStream is = null;
		try {
			is = Thread.currentThread().getContextClassLoader().getResourceAsStream(fileName);
			if (is == null) {
				is = PropUtil.class.getClassLoader().getResourceAsStream(fileName);
				if(is == null){
					throw new FileNotFoundException(fileName + "  file is not found");
				}
			}
			props = new Properties();
			props.load(is);
		} catch (IOException e) {
			logger.info("load properties file failure",e);
		}finally {
			if (is != null) {
				try {
					is.close();
				} catch (IOException e) {
					logger.info("close input stream failure",e);
				}
			}

		}
		return props;
	}

	/**
	 * 获取字符属性(默认值为空字符串)
	 */
	public static String getString(Properties props, String key) {
		return getString(props,key,"");
	}
	/**
	 * 获取字符属性(指定默认值)
	 */
	public static String getString(Properties props, String key,String defaultValue) {
		String value = defaultValue;
		if (props.contains(key)) {
			value = props.getProperty(key);
		}
		return value;
	}

	/**
	 * 获取数值型属性,默认值为0
	 */
	public static int getInt(Properties props, String key) {
		return getInt(props,key,0);
	}

	public static int getInt(Properties props, String key, int defaultValue) {
		int value = defaultValue;
		if (props.contains(key)) {
			value = Integer.parseInt(props.getProperty(key));
		}
		return value;
	}

	/**
	 * 获取布尔类型
	 */
	public static boolean getBoolean(Properties props,String key) {
		return getBoolean(props, key, false);
	}

	public static boolean getBoolean(Properties props,String key, Boolean defaultValue) {
		boolean value = defaultValue;
		if (props.contains(key)) {
			value = Boolean.parseBoolean(props.getProperty(key));
		}
		return value;
	}


}
